How do I get a big dick?

Not Medical Advice: The only way to get a larger penis is through surgery. Pills and lotions, vacuum pumps, exercises, stretching do not work and in some cases can cause permanent damage. The average penis is 8 to 13 centimetres when flaccid, and 13 to 18 centimetres erect. A micropenis is only 7 centimetres when erect.